#!/usr/bin/make -f
# debian/rules for Free Pascal

DEB_PACKAGE_NAME = fpc
DEB_DH_BUILDDEB_ARGS := -- -Z bzip2
export DH_ALWAYS_EXCLUDE := COPYING:LICENSE
export LANG:=C

# Documentation type to use pdf/html
ifeq (${DEBDOCTYPE},)
DOCTYPE=html
# HTML Converter l2h/4ht/hevea or html for (default)
CONVERTER=hevea
else
DOCTYPE=${DEBDOCTYPE}
CONVERTER=${DOCTYPE}
endif
# Undefine FPC if it was set
unexport FPC

# Detect name of new compiler, take care that debian uses amd64 instead of x86_64
CPU_SOURCE := $(subst amd64,x86_64,$(shell dpkg-architecture -qDEB_BUILD_ARCH_CPU))
CPU_TARGET := $(subst amd64,x86_64,$(shell dpkg-architecture -qDEB_HOST_ARCH_CPU))

ifeq ($(CPU_TARGET),m68k)
PPSUF=68k
endif
ifeq ($(CPU_TARGET),i386)
PPSUF=386
endif
ifeq ($(CPU_TARGET),x86_64)
PPSUF=x64
endif
ifeq ($(CPU_TARGET),powerpc)
PPSUF=ppc
endif
ifeq ($(CPU_TARGET),alpha)
PPSUF=axp
endif
ifeq ($(CPU_TARGET),arm)
PPSUF=arm
endif
ifeq ($(CPU_TARGET),sparc)
PPSUF=sparc
endif

ifneq ($(CPU_SOURCE),$(CPU_TARGET))
PPPRE=ppcross
else
PPPRE=ppc
endif

PPNEW=$(PPPRE)$(PPSUF)

FPCTARGET=$(CPU_TARGET)-linux
# Get version information from changelog file
DEB_VERSION:=$(shell dpkg-parsechangelog | grep '^Version:' | cut -f 2 -d ' ')
DEB_UPSTREAM_VERSION:=$(shell echo $(DEB_VERSION) | cut -f 1 -d -)
DEB_UPSTREAM_MAIN_VERSION:=$(shell echo ${DEB_UPSTREAM_VERSION} | sed -e 's/^\([0-9\.]*\).*/\1/')
DEB_BUILD=$(lastword $(subst -, ,${DEB_VERSION}))
ifndef PACKAGESUFFIX
export PACKAGESUFFIX=-${DEB_UPSTREAM_MAIN_VERSION}
endif
# Get directories
BUILD_DIR:=$(shell pwd)
INSTALL_DIR=${BUILD_DIR}/debian/tmp
BIN_DIR=${INSTALL_DIR}/usr/bin
LIB_DIR=${INSTALL_DIR}/usr/lib/${DEB_PACKAGE_NAME}/${DEB_UPSTREAM_MAIN_VERSION}
DOC_DIR=${INSTALL_DIR}/usr/share/doc
SRC_DIR=${INSTALL_DIR}/usr/share/fpcsrc/${DEB_UPSTREAM_MAIN_VERSION}
EXAMPLE_TEMP=${INSTALL_DIR}/usr/share/doc/fpc-${DEB_UPSTREAM_MAIN_VERSION}
STY_DIR=${INSTALL_DIR}/usr/share/texmf/tex/latex/fpc-${DEB_UPSTREAM_VERSION}
# Get utils
ifndef MKDIR
MKDIR=mkdir -p
endif
ifndef CP
CP=cp -Rfpl
endif
ifndef MV
MV=mv
endif
RM:=rm -rf
# Get fpcmake from path if none is specified.
ifndef FPCMAKE
FPCMAKE=fpcmake
endif
# Undefine FPCDIR if it was set
unexport FPCDIR
NEWPP=$(BUILD_DIR)/fpcsrc/compiler/$(PPNEW)
NEWFPDOC=$(BUILD_DIR)/fpcsrc/utils/fpdoc/fpdoc
# Set default compilation options
BUILDOPTS=PP=$(NEWPP)
ifdef CROSSOPT
BUILDOPTS+= CROSSOPT=${CROSSOPT}
endif
INSTALLOPTS=INSTALL_PREFIX=$(INSTALL_DIR)/usr PP=$(NEWPP)

export GDBLIBDIR=/usr/lib

#specify arm variant explicitly so we can use a starting
#compiler from a different arm variant (for bootstrapping)
ifeq ($(CPU_TARGET),arm)
  DEBIANARCH := $(shell dpkg-architecture -qDEB_HOST_ARCH)
  ifeq ($(DEBIANARCH),arm)
    CYCLEOPTS := OPT='-dFPC_OARM'
  else
    CYCLEOPTS := OPT='-dFPC_$(DEBIANARCH)'
  endif
else
  CYCLEOPTS=
endif

#export DH_VERBOSE=1

###################
# Clean
#

clean: configure clean-patched
	${RM} build-arch-stamp install-arch-stamp arrange-arch-stamp configure-stamp
	${RM} install-man-stamp
	${RM} build-doc-stamp install-doc-stamp
	${RM} build-indep-stamp install-indep-stamp
	${RM} install-source-stamp
	${RM} debian/*.install
	${RM} debian/*.config
	${RM} debian/*.doc-base
	${RM} debian/*.links
	${RM} debian/*.manpages
	${RM} debian/*.preinst
	${RM} debian/*.prerm
	${RM} debian/*.templates
	${RM} debian/README*.Debian
	${RM} debian/copyright
	${RM} debian/fpc-depends
	${RM} debian-files-stamp
	${RM} debian/files debian/docs debian/dirs debian/*.files debian/*.docs debian/*.examples debian/*.postinst debian/*.postrm
	${RM} debian/fpc-depends-${DEB_UPSTREAM_MAIN_VERSION}.1
	# Remove auto-generated version file.
	${RM} fpcsrc/compiler/version.inc
	#remove some stuff that seems to get left behind by the upstream build
	${RM} fpcsrc/compiler/utils/msg2inc
	${RM} fpcdocs/fpdoc.haux
	${RM} fpcdocs/prog.haux
	${RM} fpcdocs/ref.haux
	${RM} fpcdocs/ref.hind
	${RM} fpcdocs/user.haux
	
	dh_clean

clean-patched:
	@echo "--- Cleaning"
	dh_testdir
	dh_testroot
	$(MAKE) -C fpcsrc compiler_distclean
	$(MAKE) -C fpcsrc rtl_distclean
	$(MAKE) -C fpcsrc packages_distclean
	$(MAKE) -C fpcsrc ide_distclean
	$(MAKE) -C fpcsrc utils_distclean
	$(MAKE) -C fpcdocs clean
	find -regex '.*\.\(a\|or?\|so\.*\|ppu\)' -delete
	dh_prep

###################
# Debian files
#

debian-files: debian-files-stamp
debian-files-stamp:
	@echo "--- Creating/fixing *.install files"
	GEN_CONTROL=false /bin/bash debian/fixdeb debian $(FPCTARGET) $(PPNEW)
	touch debian-files-stamp

debian/control: debian/control.in
	GEN_CONTROL=true /bin/bash debian/fixdeb debian $(FPCTARGET) $(PPNEW)


###################
# Arch packages
#

configure: configure-stamp
configure-stamp:
	dh_testdir
	# Remove auto-generated version file.
	${RM} fpcsrc/compiler/version.inc
	# Add version.inc:
	echo \'$(DEB_VERSION)\' > fpcsrc/compiler/version.inc
	touch configure-stamp

build-arch: debian-files configure build-arch-stamp
build-arch-stamp:
	@echo "--- Building"
	dh_testdir
	# First make a new Compiler using a make cycle
	$(MAKE) -C fpcsrc compiler_cycle $(CYCLEOPTS)
	# Then build RTL using new compiler
	$(MAKE) -C fpcsrc rtl_clean rtl_smart $(BUILDOPTS)
	# Finally build packages and tools using new compiler and new RTL
	$(MAKE) -C fpcsrc packages_smart $(BUILDOPTS)
	$(MAKE) -C fpcsrc ide_all $(BUILDOPTS)
	$(MAKE) -C fpcsrc utils_all $(BUILDOPTS)
	touch build-arch-stamp

install-arch: build-arch install-arch-stamp
install-arch-stamp:
	@echo "--- Installing"
	dh_testdir
	dh_testroot
	dh_installdirs
	# create all necessary directories
	${MKDIR} ${BIN_DIR}
	${MKDIR} ${LIB_DIR}
	${MKDIR} ${STY_DIR}
	# Specify the compiler to use so installing will use the correct versioned dir
	$(MAKE) -C fpcsrc compiler_distinstall $(INSTALLOPTS)
	$(MAKE) -C fpcsrc rtl_distinstall $(INSTALLOPTS)
	$(MAKE) -C fpcsrc packages_distinstall $(INSTALLOPTS)
	$(MAKE) -C fpcsrc ide_distinstall $(INSTALLOPTS) INSTALL_DOCDIR=$(DOC_DIR)/fp-ide/${DEB_UPSTREAM_MAIN_VERSION}
	$(MAKE) -C fpcsrc utils_distinstall $(INSTALLOPTS)
	${MV} -t ${LIB_DIR} ${INSTALL_DIR}/usr/lib/fpc/lexyacc
	${CP} -t  ${BIN_DIR} debian/fpc-depends
	# Copy examples to the correct doc dir
	/bin/bash debian/moveexamples ${EXAMPLE_TEMP} ${DOC_DIR} ${DEB_UPSTREAM_MAIN_VERSION}
	# Rename executables
	for f in  ${BIN_DIR}/* ; do ${MV} $$f $${f}-${DEB_UPSTREAM_MAIN_VERSION} ; done
	# Install RTL demos
	$(MAKE) -C demo sourceinstall $(INSTALLOPTS) INSTALL_SOURCEDIR=$(DOC_DIR)/fp-compiler/${DEB_UPSTREAM_MAIN_VERSION}
	# Install whatsnew and readme
	$(MAKE) -C install/doc installdoc $(INSTALLOPTS) INSTALL_DOCDIR=$(DOC_DIR)/fp-compiler/${DEB_UPSTREAM_MAIN_VERSION}
	# Install fpdoc latex styles
	${CP} -t ${STY_DIR} \
		${BUILD_DIR}/fpcdocs/*.sty
	# Install lintian override files
	set -x -e ; cd debian/overrides ; for PACKAGE in * ; do \
	  if [ -d ../$${PACKAGE}${PACKAGESUFFIX} ] ; \
	  then \
	  	${MKDIR} ../$${PACKAGE}${PACKAGESUFFIX}/usr/share/lintian/overrides ; \
	    sed -e "s/$${PACKAGE}/&${PACKAGESUFFIX}/g" $${PACKAGE} > ../$${PACKAGE}${PACKAGESUFFIX}/usr/share/lintian/overrides/$${PACKAGE}${PACKAGESUFFIX} ; \
	  fi ; \
	done
ifeq (${DEB_BUILD},0)
	# We are building upstream debs, install override files for build = 0
	set -x -e ; cd debian ; for PACKAGE in `sed -n -e 's/Package: \(.*\)/\1/p' control` ; do \
	  if [ -d $${PACKAGE} ] ; \
	  then \
	    ${MKDIR} $${PACKAGE}/usr/share/lintian/overrides ; \
	    echo "$${PACKAGE}: debian-revision-should-not-be-zero" >> $${PACKAGE}/usr/share/lintian/overrides/$${PACKAGE} ; \
	  fi ; \
	done
endif
	find ${INSTALL_DIR} -empty -delete
	touch install-arch-stamp

arrange-arch: install-arch arrange-arch-stamp install-man
arrange-arch-stamp:
	dh_testdir
	dh_testroot
	dh_install -s --sourcedir=debian/tmp --list-missing
	touch arrange-arch-stamp

build-indep:
install-indep:
	touch install-indep-stamp

install-man: install-man-stamp
install-man-stamp:
	# Install man pages
	$(MAKE) -C install/man installman $(INSTALLOPTS)
	for s in ${INSTALL_DIR}/usr/man/man[1-9] ; do cd $${s} && ( gzip -d *.gz || true ) && for f in *.[1-9] ; do ${MV} $${f} $${f%%.*}-${DEB_UPSTREAM_MAIN_VERSION}."$${f#*.}" ; done ; done || true
	pod2man -c 'Free pascal for Debian GNU/Linux' debian/fpc-depends > debian/fpc-depends-${DEB_UPSTREAM_MAIN_VERSION}.1
	dh_installman -s
	${RM} ${INSTALL_DIR}/usr/man
	touch install-man-stamp

###################
# Documentation
#

build-doc: debian-files build-doc-stamp
build-doc-stamp:
	@echo "--- Building Documentation"
	dh_testdir
	${MKDIR} fpcsrc/compiler/utils/units/${FPCTARGET}
	$(MAKE) -C fpcdocs $(CONVERTER)
	touch build-doc-stamp

install-doc: build-doc install-doc-stamp
install-doc-stamp:
	@echo "--- Installing Documentation"
	dh_testdir
	dh_testroot
	${MAKE} -C fpcdocs ${DOCTYPE}install INSTALL_PREFIX=${INSTALL_DIR}/usr INSTALL_DOCDIR=${DOC_DIR}/fp-docs/${DEB_UPSTREAM_MAIN_VERSION}
	touch install-doc-stamp

###################
# Source
#

install-source: install-source-stamp
install-source-stamp: 
	@echo "--- Cleaning the tree and copying the source code"
	dh_testdir
	dh_testroot
	${MKDIR} ${SRC_DIR}
	${CP} -t ${SRC_DIR} \
	$(BUILD_DIR)/fpcsrc/compiler \
	$(BUILD_DIR)/fpcsrc/packages \
	$(BUILD_DIR)/fpcsrc/rtl
	touch install-source-stamp

###################
# Generic
#

build: build-arch build-indep
install: install-arch install-indep
binary: binary-arch binary-indep


###################
# Deb building
#

binary-indep: clean-patched build-doc install-doc install-source debian-files
	@echo "--- Building: arch-indep packages"
	dh_testdir
	dh_testroot
	dh_installdocs -i -X.in
	dh_installchangelogs -i
	dh_install -i --sourcedir=debian/tmp --list-missing
	find debian/fpc-source${PACKAGESUFFIX}/usr/share/fpcsrc/ -type f \
	  -not -regex '.*\.\(fpc\|inc\|pas\|pp\)' -delete
	find debian/fpc-source${PACKAGESUFFIX}/usr/share/fpcsrc/ -type d \
	  -empty -delete
	# Install lintian override files
	set -x -e ; cd debian/overrides ; for PACKAGE in * ; do \
	  if [ -d ../$${PACKAGE}${PACKAGESUFFIX} ] ; \
	  then \
	  	${MKDIR} ../$${PACKAGE}${PACKAGESUFFIX}/usr/share/lintian/overrides ; \
	    sed -e "s/$${PACKAGE}/&${PACKAGESUFFIX}/g" $${PACKAGE} > ../$${PACKAGE}${PACKAGESUFFIX}/usr/share/lintian/overrides/$${PACKAGE}${PACKAGESUFFIX} ; \
	  fi ; \
	done
ifeq (${DEB_BUILD},0)
	# We are building upstream debs, install override files for build = 0
	set -x -e ; cd debian ; for PACKAGE in `sed -n -e 's/Package: \(.*\)/\1/p' control` ; do \
	  if [ -d $${PACKAGE} ] ; \
	  then \
	    ${MKDIR} $${PACKAGE}/usr/share/lintian/overrides ; \
	    echo "$${PACKAGE}: debian-revision-should-not-be-zero" >> $${PACKAGE}/usr/share/lintian/overrides/$${PACKAGE} ; \
	  fi ; \
	done
endif
	dh_compress -i -X.pdf
	dh_fixperms -i
	dh_installdebconf -i
	dh_installdeb -i
	dh_gencontrol -i
	dh_md5sums -i
	dh_builddeb -i $(DEB_DH_BUILDDEB_ARGS)

binary-arch: arrange-arch
	@echo "--- Building: arch packages"
	dh_testdir
	dh_testroot
	dh_link
	dh_installdocs -a -X.in
	dh_installchangelogs -a
	dh_installexamples -a
	dh_strip -s
	dh_compress -a
	dh_fixperms -a
	dh_installdebconf -a
	dh_installdeb -a
	dh_shlibdeps -s
	dh_gencontrol -s
	dh_md5sums -s
	dh_builddeb -s $(DEB_DH_BUILDDEB_ARGS)

.PHONY: build clean binary binary-arch \
	binary-indep debian-files build-arch \
	install install-indep install-arch \
	configure

get-orig-source:
	-uscan --upstream-version=0 --rename
